You will get Full-Stack Developer | Node.js | React | ERP | CRM | Inventory Management
Project details
Transform your business ideas into a secure, scalable, and modern web application.
I specialize in developing custom web applications that automate business processes, improve productivity, and replace manual workflows with efficient digital solutions. Whether you need an ERP, CRM, inventory management system, customer portal, admin dashboard, or a custom business application, I can build a solution tailored to your needs.
With 25+ years of professional experience, I develop responsive, secure, and scalable applications using Node.js, React, Express.js, JavaScript, MySQL, PostgreSQL, HTML5, CSS3, and REST APIs.
I have built ERP systems, CRM platforms, inventory management software, legal practice management systems, tender management platforms, and business dashboards. Every application is developed with clean architecture, optimized databases, secure authentication, role-based access, and a user-friendly interface.
You will receive:
• Custom web application
• Responsive UI
• Secure login & user roles
• Clean source code
• API & database integration
• Testing & deployment support
• Post-delivery assistance
I specialize in developing custom web applications that automate business processes, improve productivity, and replace manual workflows with efficient digital solutions. Whether you need an ERP, CRM, inventory management system, customer portal, admin dashboard, or a custom business application, I can build a solution tailored to your needs.
With 25+ years of professional experience, I develop responsive, secure, and scalable applications using Node.js, React, Express.js, JavaScript, MySQL, PostgreSQL, HTML5, CSS3, and REST APIs.
I have built ERP systems, CRM platforms, inventory management software, legal practice management systems, tender management platforms, and business dashboards. Every application is developed with clean architecture, optimized databases, secure authentication, role-based access, and a user-friendly interface.
You will receive:
• Custom web application
• Responsive UI
• Secure login & user roles
• Clean source code
• API & database integration
• Testing & deployment support
• Post-delivery assistance
Programming Languages
PHP, HTML & CSS, JavaCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$150
|
Standard
$650
|
Advanced
$1,800
|
|---|---|---|---|
| Delivery Time | 5 days | 12 days | 25 days |
Number of Revisions | 2 | 3 | Unlimited |
Number of Pages | 5 | 15 | 30 |
Design Customization | |||
Content Upload | - | ||
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Database Migration
(+ 2 Days)
+$100
API Integration
+$150
WhatsApp Integration
(+ 1 Day)
+$100Frequently asked questions
About Rimjhim
Full-Stack Developer | Node.js | React | ERP & CRM | Google Ads | Busi
Kolkata, India - 3:37 pm local time
I help businesses streamline operations and grow online by combining custom software development with data-driven digital marketing.
With 25+ years of professional experience, I've worked with startups, SMEs, agencies, and international clients to develop scalable web applications, automate business processes, and improve online marketing performance.
Unlike many freelancers who specialize in only development or marketing, I bridge both worlds—building business software while understanding how it supports sales, operations, and customer growth.
Full-Stack Development
I develop modern, secure, and scalable web applications using:
Node.js
Express.js
React
JavaScript
MySQL
PostgreSQL
REST APIs
JWT Authentication
HTML5 & CSS3
Bootstrap
Applications I Build
ERP Systems
CRM Platforms
Inventory Management
Business Dashboards
Practice Management Software
Tender Management Systems
Admin Panels
Customer Portals
HR & Payroll Systems
Sales & Purchase Management
Reporting & Analytics
Digital Marketing
Certified Google Ads and Analytics professional with extensive experience in:
Google Ads
Meta Ads
Google Analytics
SEO
Shopify Marketing
E-commerce Marketing
Conversion Optimization
Keyword Research
Performance Marketing
Lead Generation
Business Consulting
I don't simply develop software—I first understand your workflow.
My goal is to eliminate manual work, automate repetitive processes, improve reporting, and build systems that support long-term business growth.
Recent Projects
Business ERP Platform
A complete ERP solution featuring inventory management, CRM, sales, purchases, customer management, reporting, and analytics.
Legal Practice Management System
A secure platform for advocates and law firms, including case management, hearings, billing, document storage, reminders, and client communication.
Tender Management Platform
A centralized solution for tracking government tenders, managing documents, monitoring deadlines, and improving workflow efficiency.
Inventory & Operations Management System
An automated inventory system with real-time stock updates, purchase and sales workflows, role-based permissions, reporting, and operational dashboards.
Industries
Legal Services
Manufacturing
Wholesale
Retail
Healthcare
Education
SaaS
E-commerce
Logistics
Professional Services
Why Work With Me
✔ 25+ years of professional experience
✔ Business-first approach to software development
✔ Clean, maintainable, and scalable code
✔ Transparent communication
✔ Long-term support
✔ Strong understanding of marketing and business operations
Skills (Top 15)
Node.js
React
Express.js
JavaScript
MySQL
REST API Development
ERP Development
CRM Development
Inventory Management Software
Google Ads
Meta Ads
SEO
Google Analytics
Shopify
Business Process Automation
Portfolio Projects to Add
DEINRIM 360 – ERP & Business Management
DEINRIM OMS – Inventory & Operations
Lawyer Desk – Legal Practice Management
TenderPilot – Tender Management
Government Scheme Portal
AI Business Dashboard (when completed)
Steps for completing your project
After purchasing the project, send requirements so Rimjhim can start the project.
Delivery time starts when Rimjhim receives requirements from you.
Rimjhim works on your project following the steps below.
Revisions may occur after the delivery date.
Project Discovery & Planning
Discuss your business requirements, workflow, user roles, and project goals. Define the project scope and create a clear development roadmap.
UI/UX & System Design
Design the user interface, database structure, and application architecture for your review and approval before development begins.